Euclastes
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Euclastes
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Euclastes is an extinct genus of sea turtle. It was first named by Edward Drinker Cope in 1867, and contains three species. E. hutchisoni, was named in 2003 but has since been reassigned to the genus Pacifichelys,[1] while 'E. coahuilaensis' named in 2009 was reassigned as Mexichelys coahuilaensis in 2010[2][3]
Description
Unlike the sea turtles Toxochelys and Eochelone, Euclastes has a secondary palate. However, the secondary palate of Euclastes is not as extensive as it is in Ctenochelys. The genus can be distinguished by later sea turtles based on its broad, low skull; broad, flat palate; wide, flat dentary bone with an elongated symphysis; and low tomial ridge on the beak. The widened palate and dentaries give Eochelone wide, flat jaws suitable for crushing hard-shelled organisms.[1]
Classification
Species
Phylogeny
Cladogram based on Lynch and Parham (2003)[1] and Parham and Pyenson (2010):[5]
| Cheloniidae sensu lato |
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References
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- ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Euclastes coahuilaensis from the Paleobiology Database
- ↑ Exibidos fósseis de tartarugas com 72 mi de anos
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
